fix: shiro 缓存失效时自动重新登录获取充值记录

- /api/history 充值记录获取失败时触发 fullLoginFlow 重建会话

- 重建后重试一次, 彻底失败才降级为无充值计算

- 补充 fullLoginFlow 失败日志便于排查

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

go/electric.go

@@ -404,6 +404,7 @@ func queryElectric() *electricResult {
 	// 2. 完整登录
 	appShiro, room, result, err := fullLoginFlow()
 	if err != nil {
+		fmt.Println("[登录] fullLoginFlow 失败:", err)
 		clearCache()
 		return &electricResult{OK: false, Error: err.Error()}
 	}